In the United States and Canada, this time zone is generically called Mountain Time (MT). Specifically, it is Mountain Standard Time (MST) when observing standard time, and Mountain Daylight Time (MDT) when observing daylight saving time. The term refers to how the Rocky Mountains, which range from northwestern Canada to the US state of New Mexico, are located almost entirely in the time zone; in Mexico, this time zone is known as the Zona Pacífico (Pacific Zone). In the US and Canada, the Mountain Time Zone is to the east of the Pacific Time Zone and to the west of the Central Time Zone.

In some areas, starting in 2007, the local time changes from MST to MDT at 2am MST to 3am MDT on the second Sunday in March and returns at 2am MDT to 1am MST on the first Sunday in November.

Sonora in Mexico and most of Arizona in the United States do not observe daylight saving time, and during the spring, summer, and autumn months they are on the same time as Pacific Daylight Time.[4] The Navajo Nation, most of which lies within Arizona, does observe DST, although the Hopi Nation, as well as some Arizona state offices lying within the Navajo Nation, do not.

The largest city in the Mountain Time Zone is Phoenix, Arizona. The Phoenix metropolitan area is the largest metropolitan area in the zone; the next largest metropolitan area that observes Mountain Time is Denver, closely followed by the El Paso–Juárez area. TV broadcasting in the Mountain Time Zone is typically tape-delayed one hour, so that shows match the broadcast times of the Central Time Zone (i.e. prime time begins at 7 pm MT following the same order of programming as the Central Time Zone).[citation needed]

^The specification for the Mountain Time Zone in the United States is set forth at 49 CFR 71.8.[1] The boundary between Central and Mountain time zones is set forth at 49 CFR 71.7,[2] and the boundary between Mountain and Pacific time zones is set forth at 49 CFR 71.9.[3]

1.
North America
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North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be considered a subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea. North America covers an area of about 24,709,000 square kilometers, about 16. 5% of the land area. North America is the third largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 565 million people in 23 independent states, or about 7. 5% of the worlds population, North America was reached by its first human populations during the last glacial period, via crossing the Bering land bridge. The so-called Paleo-Indian period is taken to have lasted until about 10,000 years ago, the Classic stage spans roughly the 6th to 13th centuries. The Pre-Columbian era ended with the migrations and the arrival of European settlers during the Age of Discovery. Present-day cultural and ethnic patterns reflect different kind of interactions between European colonists, indigenous peoples, African slaves and their descendants, European influences are strongest in the northern parts of the continent while indigenous and African influences are relatively stronger in the south. Because of the history of colonialism, most North Americans speak English, Spanish or French, the Americas are usually accepted as having been named after the Italian explorer Amerigo Vespucci by the German cartographers Martin Waldseemüller and Matthias Ringmann. Vespucci, who explored South America between 1497 and 1502, was the first European to suggest that the Americas were not the East Indies, but a different landmass previously unknown by Europeans. In 1507, Waldseemüller produced a map, in which he placed the word America on the continent of South America. He explained the rationale for the name in the accompanying book Cosmographiae Introductio, for Waldseemüller, no one should object to the naming of the land after its discoverer. He used the Latinized version of Vespuccis name, but in its feminine form America, following the examples of Europa, Asia and Africa. Later, other mapmakers extended the name America to the continent, In 1538. Some argue that the convention is to use the surname for naming discoveries except in the case of royalty, a minutely explored belief that has been advanced is that America was named for a Spanish sailor bearing the ancient Visigothic name of Amairick. Another is that the name is rooted in a Native American language, the term North America maintains various definitions in accordance with location and context. In Canadian English, North America may be used to refer to the United States, alternatively, usage sometimes includes Greenland and Mexico, as well as offshore islands

2.
Coordinated Universal Time
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Coordinated Universal Time, abbreviated to UTC, is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean time at 0° longitude. It is one of closely related successors to Greenwich Mean Time. For most purposes, UTC is considered interchangeable with GMT, the first Coordinated Universal Time was informally adopted on 1 January 1960. This change also adopted leap seconds to simplify future adjustments, a number of proposals have been made to replace UTC with a new system that would eliminate leap seconds, but no consensus has yet been reached. Leap seconds are inserted as necessary to keep UTC within 0.9 seconds of universal time, see the Current number of leap seconds section for the number of leap seconds inserted to date. The official abbreviation for Coordinated Universal Time is UTC and this abbreviation arose from a desire by the International Telecommunication Union and the International Astronomical Union to use the same abbreviation in all languages. English speakers originally proposed CUT, while French speakers proposed TUC, the compromise that emerged was UTC, which conforms to the pattern for the abbreviations of the variants of Universal Time. Time zones around the world are expressed using positive or negative offsets from UTC, the westernmost time zone uses UTC−12, being twelve hours behind UTC, the easternmost time zone, theoretically, uses UTC+12, being twelve hours ahead of UTC. In 1995, the nation of Kiribati moved those of its atolls in the Line Islands from UTC-10 to UTC+14 so that the country would all be on the same day. UTC is used in internet and World Wide Web standards. The Network Time Protocol, designed to synchronise the clocks of computers over the internet, computer servers, online services and other entities that rely on having a universally accepted time use UTC as it is more specific than GMT. If only limited precision is needed, clients can obtain the current UTC from a number of official internet UTC servers, for sub-microsecond precision, clients can obtain the time from satellite signals. UTC is also the standard used in aviation, e. g. for flight plans. Weather forecasts and maps all use UTC to avoid confusion about time zones, the International Space Station also uses UTC as a time standard. Amateur radio operators often schedule their radio contacts in UTC, because transmissions on some frequencies can be picked up by many time zones, UTC is also used in digital tachographs used on large goods vehicles under EU and AETR rules. UTC divides time into days, hours, minutes and seconds, days are conventionally identified using the Gregorian calendar, but Julian day numbers can also be used. Each day contains 24 hours and each hour contains 60 minutes, the number of seconds in a minute is usually 60, but with an occasional leap second, it may be 61 or 59 instead

3.
Daylight saving time
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Daylight saving time is the practice of advancing clocks during summer months by one hour so that evening daylight lasts an hour longer, while sacrificing normal sunrise times. Typically, regions that use Daylight Savings Time adjust clocks forward one hour close to the start of spring, American inventor and politician Benjamin Franklin proposed a form of daylight time in 1784. New Zealander George Hudson proposed the idea of saving in 1895. The German Empire and Austria-Hungary organized the first nationwide implementation, starting on April 30,1916, many countries have used it at various times since then, particularly since the energy crisis of the 1970s. The practice has both advocates and critics, DST clock shifts sometimes complicate timekeeping and can disrupt travel, billing, record keeping, medical devices, heavy equipment, and sleep patterns. Computer software often adjusts clocks automatically, but policy changes by various jurisdictions of DST dates, industrialized societies generally follow a clock-based schedule for daily activities that do not change throughout the course of the year. The time of day that individuals begin and end work or school, North and south of the tropics daylight lasts longer in summer and shorter in winter, with the effect becoming greater as one moves away from the tropics. However, they will have one hour of daylight at the start of each day. Supporters have also argued that DST decreases energy consumption by reducing the need for lighting and heating, DST is also of little use for locations near the equator, because these regions see only a small variation in daylight in the course of the year. After ancient times, equal-length civil hours eventually supplanted unequal, so civil time no longer varies by season, unequal hours are still used in a few traditional settings, such as some monasteries of Mount Athos and all Jewish ceremonies. This 1784 satire proposed taxing window shutters, rationing candles, and waking the public by ringing church bells, despite common misconception, Franklin did not actually propose DST, 18th-century Europe did not even keep precise schedules. However, this changed as rail transport and communication networks came to require a standardization of time unknown in Franklins day. Modern DST was first proposed by the New Zealand entomologist George Hudson, whose shift work job gave him time to collect insects. An avid golfer, he also disliked cutting short his round at dusk and his solution was to advance the clock during the summer months, a proposal he published two years later. The proposal was taken up by the Liberal Member of Parliament Robert Pearce, a select committee was set up to examine the issue, but Pearces bill did not become law, and several other bills failed in the following years. Willett lobbied for the proposal in the UK until his death in 1915, william Sword Frost, mayor of Orillia, Ontario, introduced daylight saving time in the municipality during his tenure from 1911 to 1912. Starting on April 30,1916, the German Empire and its World War I ally Austria-Hungary were the first to use DST as a way to conserve coal during wartime, Britain, most of its allies, and many European neutrals soon followed suit. Russia and a few other countries waited until the year

4.
Mean solar time
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Solar time is a calculation of the passage of time based on the position of the Sun in the sky. The fundamental unit of time is the day. Two types of time are apparent solar time and mean solar time. Fix a tall pole vertically in the ground, at some instant on any day the shadow will point exactly north or south. That instant is local apparent noon,12,00 local apparent time, about 24 hours later the shadow will again point north/south, the Sun seeming to have covered a 360-degree arc around the Earths axis. When the Sun has covered exactly 15 degrees, local apparent time is 13,00 exactly, after 15 more degrees it will be 14,00 exactly. As explained in the equation of time article, this is due to the eccentricity of the Earths orbit, the effect of this is that a clock running at a constant rate – e. g. This is mean solar time, which is not perfectly constant from one century to the next but is close enough for most purposes. Currently a mean solar day is about 86,400.002 SI seconds, the two kinds of solar time are among the three kinds of time reckoning that were employed by astronomers until the 1950s. By the 1950s it had become clear that the Earths rotation rate was not constant, so astronomers developed ephemeris time, the apparent sun is the true sun as seen by an observer on Earth. Apparent solar time or true solar time is based on the apparent motion of the actual Sun and it is based on the apparent solar day, the interval between two successive returns of the Sun to the local meridian. Solar time can be measured by a sundial. The equivalent on other planets is termed local true solar time, the length of a solar day varies through the year, and the accumulated effect produces seasonal deviations of up to 16 minutes from the mean. The effect has two main causes, first, Earths orbit is an ellipse, not a circle, so the Earth moves faster when it is nearest the Sun and slower when it is farthest from the Sun. Second, due to Earths axial tilt, the Suns annual motion is along a circle that is tilted to Earths celestial equator. In June and December when the sun is farthest from the equator a given shift along the ecliptic corresponds to a large shift at the equator. So apparent solar days are shorter in March and September than in June or December and these lengths will change slightly in a few years and significantly in thousands of years. Mean solar time is the angle of the mean Sun plus 12 hours

5.
Royal Observatory, Greenwich
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The Royal Observatory, Greenwich is an observatory situated on a hill in Greenwich Park, overlooking the River Thames. It played a role in the history of astronomy and navigation. The observatory was commissioned in 1675 by King Charles II, with the stone being laid on 10 August. The site was chosen by Sir Christopher Wren and he appointed John Flamsteed as the first Astronomer Royal. The building was completed in the summer of 1676, the building was often called Flamsteed House, in reference to its first occupant. The scientific work of the observatory was relocated elsewhere in stages in the first half of the 20th century,1675 –22 June, Royal Observatory founded. 1675 –10 August, construction began,1714 Longitude Act established the Board of Longitude and Longitude rewards. The Astronomer Royal was, until the Board was dissolved in 1828,1767 Astronomer Royal Nevil Maskelyne began publication of the Nautical Almanac, based on observations made at the Observatory. 1833 Daily time signals began, marked by dropping a Time ball,1899 The New Physical Observatory was completed. 1924 Hourly time signals from the Royal Observatory were first broadcast on 5 February,1948 Office of the Astronomer Royal was moved to Herstmonceux. 1957 Royal Observatory completed its move to Herstmonceux, becoming the Royal Greenwich Observatory, the Greenwich site is renamed the Old Royal Observatory. Greenwich site is returned to its name, the Royal Observatory. The Ordnance Office was given responsibility for building the Observatory, with Moore providing the key instruments, Moore donated two clocks, built by Thomas Tompion, which were installed in the 20 foot high Octagon Room, the principal room of the building. They were of unusual design, each with a pendulum 13 feet in length mounted above the face, giving a period of four seconds. British astronomers have used the Royal Observatory as a basis for measurement. Four separate meridians have passed through the buildings, defined by successive instruments, subsequently, nations across the world used it as their standard for mapping and timekeeping. When the Airy circle became the reference for the meridian, the difference resulting from the change was considered enough to be neglected. When a new triangulation was done between 1936 and 1962, scientists determined that in the Ordnance Survey system the longitude of the international Greenwich meridian was not 0° and this old astronomical prime meridian has been replaced by a more precise prime meridian

6.
Code of Federal Regulations
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The CFR is divided into 50 titles that represent broad areas subject to federal regulation. The CFR annual edition is the codification of the general and permanent rules published by the Office of the Federal Register, in addition to this annual edition, the CFR is published in an unofficial format online on the Electronic CFR website, which is updated daily. Under the nondelegation doctrine, federal agencies are authorized by enabling legislation to promulgate regulations, the rules and regulations are first promulgated or published in the Federal Register. The CFR is structured into 50 subject matter titles, agencies are assigned chapters within these titles. The titles are broken down into chapters, parts, sections, for example,42 CFR260.11 would be read as title 42, part 260, section 11, paragraph. The Parallel Table of Authorities and Rules lists rulemaking authority for regulations codified in the CFR, the first edition of the CFR was published in 1938. Beginning in 1963 for some titles and for all titles in 1967, the Office of the Federal Register began publishing yearly revisions, the House voted on July 14,2014 to pass the bill 386–0. A Research Guide to the Federal Register and the Code of Federal Regulations, law Librarians Society of Washington, D. C. Report to Congress on the Costs and Benefits of Federal Regulations, the Federal Register Tutorial / The Federal Register, What It Is and How to Use It

7.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci

8.
Canada
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Canada is a country in the northern half of North America. Canadas border with the United States is the worlds longest binational land border, the majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its territory being dominated by forest and tundra. It is highly urbanized with 82 per cent of the 35.15 million people concentrated in large and medium-sized cities, One third of the population lives in the three largest cities, Toronto, Montreal and Vancouver. Its capital is Ottawa, and other urban areas include Calgary, Edmonton, Quebec City, Winnipeg. Various aboriginal peoples had inhabited what is now Canada for thousands of years prior to European colonization. Pursuant to the British North America Act, on July 1,1867, the colonies of Canada, New Brunswick and this began an accretion of provinces and territories to the mostly self-governing Dominion to the present ten provinces and three territories forming modern Canada. With the Constitution Act 1982, Canada took over authority, removing the last remaining ties of legal dependence on the Parliament of the United Kingdom. Canada is a parliamentary democracy and a constitutional monarchy, with Queen Elizabeth II being the head of state. The country is officially bilingual at the federal level and it is one of the worlds most ethnically diverse and multicultural nations, the product of large-scale immigration from many other countries. Its advanced economy is the eleventh largest in the world, relying chiefly upon its abundant natural resources, Canadas long and complex relationship with the United States has had a significant impact on its economy and culture. Canada is a country and has the tenth highest nominal per capita income globally as well as the ninth highest ranking in the Human Development Index. It ranks among the highest in international measurements of government transparency, civil liberties, quality of life, economic freedom, Canada is an influential nation in the world, primarily due to its inclusive values, years of prosperity and stability, stable economy, and efficient military. While a variety of theories have been postulated for the origins of Canada. In 1535, indigenous inhabitants of the present-day Quebec City region used the word to direct French explorer Jacques Cartier to the village of Stadacona, from the 16th to the early 18th century Canada referred to the part of New France that lay along the St. Lawrence River. In 1791, the area became two British colonies called Upper Canada and Lower Canada collectively named The Canadas, until their union as the British Province of Canada in 1841. Upon Confederation in 1867, Canada was adopted as the name for the new country at the London Conference. The transition away from the use of Dominion was formally reflected in 1982 with the passage of the Canada Act, later that year, the name of national holiday was changed from Dominion Day to Canada Day

9.
Rocky Mountains
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The Rocky Mountains, commonly known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch more than 3,000 miles from the northernmost part of British Columbia, in western Canada, to New Mexico, in the Southwestern United States. Within the North American Cordillera, the Rockies are somewhat distinct from the Pacific Coast Ranges, the Rocky Mountains were initially formed from 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began to slide underneath the North American plate. The angle of subduction was shallow, resulting in a belt of mountains running down western North America. Since then, further tectonic activity and erosion by glaciers have sculpted the Rockies into dramatic peaks, at the end of the last ice age, humans started to inhabit the mountain range. The first mention of their present name by a European was in the journal of Jacques Legardeur de Saint-Pierre in 1752, the Rocky Mountains are commonly defined as stretching from the Liard River in British Columbia south to the Rio Grande in New Mexico. The United States definition of the Rockies includes the Cabinet and Salish Mountains of Idaho and their counterparts north of the Kootenai River, the Columbia Mountains, are considered a separate system in Canada, lying to the west of the huge Rocky Mountain Trench. This runs the length of British Columbia from its beginnings in the middle Flathead River valley in western Montana to the bank of the Liard River. The Rockies vary in width from 70 to 300 miles, also west of the Rocky Mountain Trench, farther north and facing the Muskwa Range across the trench, are the Stikine Ranges and Omineca Mountains of the Interior Mountains system of British Columbia. A small area east of Prince George, British Columbia on the side of the Trench. In Canada geographers define three main groups of ranges, the Continental Ranges, Hart Ranges and Muskwa Ranges, the Muskwa and Hart Ranges together comprise what is known as the Northern Rockies. The western edge of the Rockies includes ranges such as the Wasatch near Salt Lake City, the Great Basin and Columbia River Plateau separate these sub-ranges from distinct ranges further to the west, most prominent among which are the Sierra Nevada, Cascade Range and Coast Mountains. The Rocky Mountain System within the United States is a United States physiographic region, the Rocky Mountains are notable for containing the highest peaks in central North America. The ranges highest peak is Mount Elbert located in Colorado at 14,440 feet above sea level, Mount Robson in British Columbia, at 12,972 feet, is the highest peak in the Canadian Rockies. The Continental Divide of the Americas is located in the Rocky Mountains, triple Divide Peak in Glacier National Park is so named because water that falls on the mountain reaches not only the Atlantic and Pacific, but Hudson Bay as well. Farther north in Alberta, the Athabasca and other rivers feed the basin of the Mackenzie River, see Rivers of the Rocky Mountains for a list of rivers. Human population is not very dense in the Rocky Mountains, with an average of four people per square kilometer, however, the human population grew rapidly in the Rocky Mountain states between 1950 and 1990. The 40-year statewide increases in range from 35% in Montana to about 150% in Utah

10.
New Mexico
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New Mexico is a state located in the southwestern region of the United States of America. It was admitted to the Union as the 47th state on January 6,1912 and it is usually considered one of the Mountain States. New Mexico is fifth by area, the 36th-most populous, inhabited by Native Americans for thousands of years before European exploration, New Mexico was colonized by the Spanish in 1598 Imperial Spanish viceroyalty of New Spain. Later, it was part of independent Mexico before becoming a U. S. territory and eventually a U. S. state as a result of the Mexican–American War. Among U. S. states, New Mexico has the highest percentage of Hispanics, the major Native American nations in the state are Navajo, Pueblo, and Apache peoples. The demography and culture of the state are shaped by these strong Hispanic and Native American influences and its scarlet and gold colors are taken from the royal standards of Spain, along with the ancient sun symbol of the Zia, a Pueblo-related tribe. New Mexico, or Nuevo México in Spanish, is incorrectly believed to have taken its name from the nation of Mexico. The name simply stuck, even though the area had no connection to Mexico or the Mexica Indian tribes, Mexico, formerly a part of New Spain, adopted its name centuries later in 1821, after winning independence from Spanish rule. New Mexico was a part of the independent Mexican Empire and Federal Republic of Mexico for 27 years,1821 through 1848, New Mexico and Mexico developed as neighboring Spanish-speaking communities under Spanish rule, with relatively independent histories. The states total area is 121,412 square miles, the eastern border of New Mexico lies along 103° W longitude with the state of Oklahoma, and 2.2 miles west of 103° W longitude with Texas. On the southern border, Texas makes up the eastern two-thirds, while the Mexican states of Chihuahua and Sonora make up the western third, the western border with Arizona runs along the 109°03 W longitude. The southwestern corner of the state is known as the Bootheel, the 37° N latitude parallel forms the northern boundary with Colorado. The states New Mexico, Colorado, Arizona, and Utah come together at the Four Corners in the corner of New Mexico. New Mexico, although a state, has very little water. Its surface water area is about 250 square miles, the New Mexican landscape ranges from wide, rose-colored deserts to broken mesas to high, snow-capped peaks. Despite New Mexicos arid image, heavily forested mountain wildernesses cover a significant portion of the state, the Sangre de Cristo Mountains, the southernmost part of the Rocky Mountains, run roughly north-south along the east side of the Rio Grande in the rugged, pastoral north. The most important of New Mexicos rivers are the Rio Grande, Pecos, Canadian, San Juan, the Rio Grande is tied for the fourth-longest river in the United States. Tourists visiting these sites bring significant money to the state, other areas of geographical and scenic interest include Kasha-Katuwe Tent Rocks National Monument and the Gila Wilderness in the southwest of the state

11.
Mexico
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Mexico, officially the United Mexican States, is a federal republic in the southern half of North America. It is bordered to the north by the United States, to the south and west by the Pacific Ocean, to the southeast by Guatemala, Belize, and the Caribbean Sea, and to the east by the Gulf of Mexico. Covering almost two million square kilometers, Mexico is the sixth largest country in the Americas by total area, Mexico is a federation comprising 31 states and a federal district that is also its capital and most populous city. Other metropolises include Guadalajara, Monterrey, Puebla, Toluca, Tijuana, pre-Columbian Mexico was home to many advanced Mesoamerican civilizations, such as the Olmec, Toltec, Teotihuacan, Zapotec, Maya and Aztec before first contact with Europeans. In 1521, the Spanish Empire conquered and colonized the territory from its base in Mexico-Tenochtitlan, Three centuries later, this territory became Mexico following recognition in 1821 after the colonys Mexican War of Independence. The tumultuous post-independence period was characterized by instability and many political changes. The Mexican–American War led to the cession of the extensive northern borderlands, one-third of its territory. The Pastry War, the Franco-Mexican War, a civil war, the dictatorship was overthrown in the Mexican Revolution of 1910, which culminated with the promulgation of the 1917 Constitution and the emergence of the countrys current political system. Mexico has the fifteenth largest nominal GDP and the eleventh largest by purchasing power parity, the Mexican economy is strongly linked to those of its North American Free Trade Agreement partners, especially the United States. Mexico was the first Latin American member of the Organisation for Economic Co-operation and Development and it is classified as an upper-middle income country by the World Bank and a newly industrialized country by several analysts. By 2050, Mexico could become the fifth or seventh largest economy. The country is considered both a power and middle power, and is often identified as an emerging global power. Due to its culture and history, Mexico ranks first in the Americas. Mexico is a country, ranking fourth in the world by biodiversity. In 2015 it was the 9th most visited country in the world, Mexico is a member of the United Nations, the World Trade Organization, the G8+5, the G20, the Uniting for Consensus and the Pacific Alliance. Mēxihco is the Nahuatl term for the heartland of the Aztec Empire, namely, the Valley of Mexico, and its people, the Mexica and this became the future State of Mexico as a division of New Spain prior to independence. It is generally considered to be a toponym for the valley became the primary ethnonym for the Aztec Triple Alliance as a result. After New Spain won independence from Spain, representatives decided to name the new country after its capital and this was founded in 1524 on top of the ancient Mexica capital of Mexico-Tenochtitlan

12.
Pacific Time Zone
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The Pacific Time Zone observes standard time by subtracting eight hours from Coordinated Universal Time. During daylight saving time, its time offset is UTC−7 and is based on the mean solar time of the 105th meridian west of the Greenwich Observatory. In the United States and Canada, this zone is generically called the Pacific Time Zone. Specifically, it uses Pacific Standard Time when observing standard time, most of Canada uses daylight saving time. In Mexico, the UTC−8 time zone is known as the Northwest Zone, the largest city in the Pacific Time Zone is Los Angeles, the citys metropolitan area is the largest in the zone. The following states or areas are part of the Pacific Time Zone, California Washington Oregon – all, except for most of Malheur County, nevada Idaho Panhandle – the northern half of Idaho, north of the Salmon River. The town of Hyder, Alaska, is officially in the Alaska Time Zone, however, most of the town observes the Pacific Time because of strong connections with nearby Stewart, British Columbia, which is in the Pacific Time Zone. The United States Post Office in Hyder strictly adheres to Alaska Time, in Canada, the Pacific Time Zone includes most of British Columbia, all of Yukon, and the townsite of Tungsten. In Mexico, the state of Baja California lies completely within the Pacific Time Zone and this does not include the state of Baja California Sur, which is south of Baja California. Through 2006, the time changed to daylight time at 02,00 LST to 03,00 LDT on the first Sunday in April. The Canadian provinces and territories that use daylight time each adopted these dates between October 2005 and February 2007, in Mexico, beginning in 2010, the portion of the country in this time zone uses the extended dates, as do some other parts. The vast majority of Mexico, however, still uses the old dates

13.
Central Time Zone
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The North American Central Time Zone is a time zone in parts of Canada, the United States, Mexico, Central America, some Caribbean Islands, and part of the Eastern Pacific Ocean. Central Standard Time is six hours behind Coordinated Universal Time, during summer most of the zone uses daylight saving time, and changes to Central Daylight Time which is five hours behind UTC. The province of Manitoba is the province or territory in Canada that observes Central Time in all areas. Also, most of the province of Saskatchewan is on Central Standard Time year-round, major exceptions include Lloydminster, a city situated on the boundary between Alberta and Saskatchewan. The city charter stipulates that it shall observe Mountain Time and DST, putting the community on the time as all of Alberta, including the major cities of Calgary. As a result, during the summer, clocks in the province match those in Alberta. The Central Time Zone is the second most populous in the US after the Eastern Time Zone, lanett and Valley observe Eastern Time historically because they were textile mill towns and the original home office of their mills was in West Point, Georgia. Some eastern counties observe Central Time because they are close to the border of the Middle Tennessee counties surrounding the Nashville metropolitan area. Louisiana Michigan, All of Michigan observes Eastern Time except the four Upper Peninsula counties that border Wisconsin, other westernmost counties from this area such as Ontonagon observe Eastern Time. South Dakota, Eastern half as divided by the Missouri river adjacent to the state capital, note, the metropolitan area of Pierre is Central, including Fort Pierre. Wisconsin Most of Mexico—roughly the eastern three-fourths—lies in the Central Time Zone, except for six northwestern states, the federal entities of Mexico that observe Central Time, Belize, Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua all use Central Standard Time year-round. The Galápagos Islands in Ecuador uses Central Standard Time all year-round, Daylight saving time is in effect in much of the Central time zone between mid-March and early November. The modified time is called Central Daylight Time and is UTC−5, in Canada, Saskatchewan does not observe a time change. One reason that Saskatchewan does not take part in a change is that, geographically. The province elected to move onto permanent daylight saving by being part of the Central Time Zone, Mexico decided not to go along with this change and observes their horario de verano from the first Sunday in April to the last Sunday in October. In December 2009, the Mexican Congress allowed ten border cities, eight of which are in states that observe Central Time, to adopt the U. S. daylight time schedule effective in 2010

14.
Sonora
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Sonora, officially the Free and Sovereign State of Sonora, is one of 31 states that, with Mexico City, comprise the 32 federal entities of Mexico. It is divided into 72 municipalities, the city is Hermosillo. Sonora is located in Northwest Mexico, bordered by the states of Chihuahua to the east, Baja California to the northwest and Sinaloa to the south. To the north, it shares the U. S. –Mexico border with the states of Arizona and New Mexico, and on the west has a significant share of the coastline of the Gulf of California. Sonoras natural geography is divided into three parts, the Sierra Madre Occidental in the east of the state, plains and rolling hills in the center, and the coast on the Gulf of California. It is primarily arid or semiarid deserts and grasslands, with only the highest elevations having sufficient rainfall to support other types of vegetation, Sonora is home to eight indigenous peoples, including the Mayo, the Yaqui, and Seri. It has been important for its agriculture, livestock, and mining since the colonial period. With the Gadsden Purchase, Sonora lost more than a quarter of its territory, from the 20th century to the present, industry, tourism, and agribusiness have dominated the economy, attracting migration from other parts of Mexico. Several theories exist as to the origin of the name Sonora and they encountered the Opata, who could not pronounce Señora, instead saying Senora or Sonora. A third theory, written by Father Cristóbal de Cañas in 1730, states that the name comes from the word for a water well, sonot. The first record of the name Sonora comes from explorer Francisco Vásquez de Coronado, Francisco de Ibarra also traveled through the area in 1567 and referred to the Valles de Señora. Evidence of human existence in the dates back over 10,000 years. The first humans were hunter gatherers who used tools made from stones, seashells. During much of the period, the environmental conditions were less severe than they are today, with similar. The oldest Clovis culture site in North America is believed to be El Fin del Mundo in northwestern Sonora and it was discovered during a 2007 survey. It features occupation dating around 13,390 calibrated years BP, in 2011, remains of Gomphothere were found, the evidence suggests that humans did in fact kill two of them here. Agriculture first appeared around 400 BCE and 200 CE in the river valleys, the lowland central coast, however, seems never truly to have adopted agriculture. Because Sonora and much of the northwest does not share many of the traits of that area

15.
Arizona
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Arizona is a state in the southwestern region of the United States. It is also part of the Western United States and the Mountain West states and it is the sixth largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix, Arizona is one of the Four Corners states. It has borders with New Mexico, Utah, Nevada, California, and Mexico, Arizonas border with Mexico is 389 miles long, on the northern border of the Mexican states of Sonora and Baja California. Arizona is the 48th state and last of the states to be admitted to the Union. Historically part of the territory of Alta California in New Spain, after being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase, Southern Arizona is known for its desert climate, with very hot summers and mild winters. There are ski resorts in the areas of Flagstaff, Alpine, in addition to the Grand Canyon National Park, there are several national forests, national parks, and national monuments. To the European settlers, their pronunciation sounded like Arissona, the area is still known as alĭ ṣonak in the Oodham language. Another possible origin is the Basque phrase haritz ona, as there were numerous Basque sheepherders in the area, There is a misconception that the states name originated from the Spanish term Árida Zona. See also lists of counties, islands, rivers, lakes, state parks, national parks, Arizona is in the Southwestern United States as one of the Four Corners states. Arizona is the sixth largest state by area, ranked after New Mexico, of the states 113,998 square miles, approximately 15% is privately owned. The remaining area is public forest and park land, state trust land, Arizona is well known for its desert Basin and Range region in the states southern portions, which is rich in a landscape of xerophyte plants such as the cactus. This regions topography was shaped by volcanism, followed by the cooling-off. Its climate has hot summers and mild winters. The state is well known for its pine-covered north-central portion of the high country of the Colorado Plateau. Like other states of the Southwest United States, Arizona has an abundance of mountains, despite the states aridity, 27% of Arizona is forest, a percentage comparable to modern-day France or Germany. The worlds largest stand of pine trees is in Arizona

16.
Navajo Nation
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This is the largest land area retained by a U. S. tribe, with a total population of 173,667. The original territory has expanded several times since the 1800s. In 2016 under the Tribal Nations Buy-Back Program, some 149,524 acres of land were returned by the Department of Interior to the Navajo Nation for tribal communal use, the program is intended to help restore the land bases of reservations. The executive system manages a large law enforcement and social services apparatus, health services, Diné College, the population continues to disproportionately struggle with health problems, unemployment, and the effects of past uranium mining accidents. In English, the name for the area was Navajo Indian Reservation. On April 15,1969, the changed its official name to the Navajo Nation. This was a period of Native American activism and assertion of sovereignty, in 1994, the Tribal Council rejected a proposal to change the official designation from Navajo to Diné. It was remarked that the name Diné represented the time of suffering before the Long Walk, in Navajo, the geographic entity with its legally defined borders is known as Naabeehó Bináhásdzo. This contrasts with Diné Bikéyah and Naabeehó Bikéyah for the idea of Navajoland. Neither of these terms should be confused with Dinétah, the used for the traditional homeland of the Navajo. It is situated in the area among the four sacred Navajo mountains of Dookʼoʼoosłííd, Dibé Ntsaa, Sisnaajiní, the Navajo peoples tradition of governance is rooted in their clans and oral history. The clan system of the Diné is integral to their society, singer argues in 2007s Government Reform Project. In the mid-19th century, the Navajo were forced from their lands by the US Army following defeat, after they were allowed to return, the Navajo Indian Reservation was established according to the Treaty of 1868 with the United States. Though the treaty had provided for one hundred miles in the New Mexico Territory. This initial piece of land is represented in the design of the Navajo Nations flag by a dark-brown rectangle, as no physical boundaries or signposts were set in place, many Navajo ignored these formal boundaries and returned to where they had been living prior to captivity. A significant population of Navajo still resided along the Little Colorado and Colorado rivers and they had never lived in the Hwéeldi near. The first expansion of the territory occurred on October 28,1878, further additions followed throughout the late 19th and early 20th century. The eastern border was shaped primarily as a result of allotments of land to individual households under the Dawes Act of 1887, the government determined that land left over after all members had received allotments was to be considered surplus and available for sale to non-Native Americans

17.
Hopi Reservation
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The site in north-eastern Arizona has a land area of 2,531.773 sq mi and as of the 2000 census had a population of 6,946. The Hopi Reservation, like most of Arizona but unlike the surrounding Navajo Nation, until recently, the two nations shared the Navajo-Hopi Joint Use Area. The partition of this area, commonly known as Big Mountain, the system of villages unites three mesas in the pueblo style traditionally used by the Hopi. Walpi is the oldest village on First Mesa, having established in 1690 after the villages at the foot of mesa Koechaptevela were abandoned for fear of Spanish reprisal post 1680 Pueblo Revolt. The Tewa people live on First Mesa, Hopi also occupy the Second Mesa and Third Mesa. The community of Winslow West is off-reservation trust land of the Hopi tribe, the Hopi Tribal Council is the local governing body consisting of elected officials from the various reservation villages. Its powers were given to it under the Hopi Tribal Constitution, the Hopi consider their life on the reservation an integral and critically sustaining part of the fourth world. This is the current cultural epoch in which all people of the world now live, Hopi High School is the secondary education institute for reservation residents. Hopi Radio, a station with a mix of traditional Hopi and typical American programming is run for the reservation and provides internships for Hopi High School

18.
Phoenix, Arizona
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Phoenix is the capital and most populous city of the U. S. state of Arizona. Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, the metropolitan area is the 12th largest by population in the United States, with approximately 4.3 million people as of 2010. Settled in 1867 as a community near the confluence of the Salt and Gila Rivers. Located in the reaches of the Sonoran Desert, Phoenix has a subtropical desert climate. Despite this, its canal system led to a farming community, many of the original crops remaining important parts of the Phoenix economy for decades, such as alfalfa, cotton, citrus. The city averaged a four percent annual growth rate over a 40-year period from the mid-1960s to the mid-2000s. This growth rate slowed during the Great Recession of 2007–09, and has rebounded slowly, Phoenix is the cultural center of the Valley of the Sun, as well as the entire state. For more than 2,000 years, the Hohokam people occupied the land that would become Phoenix, the Hohokam created roughly 135 miles of irrigation canals, making the desert land arable. Paths of these canals would later used for the modern Arizona Canal, Central Arizona Project Canal. The Hohokam also carried out trade with the nearby Anasazi, Mogollon and Sinagua. It is believed that between 1300 and 1450, periods of drought and severe floods led to the Hohokam civilizations abandonment of the area. After the departure of the Hohokam, groups of Akimel Oodham, Tohono Oodham and Maricopa tribes began to use the area, as well as segments of the Yavapai and Apache. The Oodham were offshoots of the Sobaipuri tribe, who in turn were thought to be the descendants of the formerly urbanized Hohokam and their crops included corn, beans, and squash for food, while cotton and tobacco were also cultivated. Mostly a peaceful group, they did together with the Maricopa for their mutual protection against incursions by both the Yuma and Apache tribes. The Tohono Oodham lived in the region as well, but their concentration was to the south. Living in small settlements, the Oodham were seasonal farmers who took advantage of the rains and they also hunted local game such as deer, rabbit, and javalina for meat. When the Mexican–American War ended in 1848, Mexico ceded its northern zone to the United States, the Phoenix area became part of the New Mexico Territory. In 1863 the mining town of Wickenburg was the first to be established in what is now Maricopa County, at the time Maricopa County had not yet been incorporated, the land was within Yavapai County, which included the major town of Prescott to the north of Wickenburg

19.
Phoenix metropolitan area
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The United States Census Bureau designates the area as the Phoenix-Mesa-Chandler Metropolitan Statistical Area, defining it as Maricopa and Pinal counties. As of the Census Bureaus 2015 population estimates, the Valley had 4,574,351 residents, the gross domestic product of the Phoenix Metropolitan Area was $215 billion in 2014, 15th largest amongst metro areas in the United States. It is also one of the fastest growing metropolitan areas, gaining nearly 400,000 residents from 2010 to 2015. The 2000 Census reported the population of the area to be 3,251,876. As for the 2010 Census, the two-county metropolitan area was reported to have a population of 4,192,887, Metro Phoenix grew by 941,011 people from April 2000 to April 2010, making it one of the fastest growing metro areas in the country. This also contributed to the entire states exceptional growth, as the area is home to just over two-thirds of Arizonas population. As of the 2010 census, there were 4,192,887 people,1,537,137 households, and 1,024,971 families residing within the MSA. The racial makeup of the MSA was 73. 0% White,5. 0% Black,3. 3% Asian,2. 4% Native American or Alaska Native and 16. 2% of other or mixed race,29. 5% were Hispanic of any race. In 2010 the median income for a household in the MSA was $50,385, the per capita income was $24,809. What follows is a list of places in the Phoenix Metropolitan Area, the Office of Management and Budget defines a metropolitan area as the core city plus its county and any nearby counties that are economically dependent on the core city. However, Arizona has relatively large counties and a harsh, rugged desert landscape, for these reasons, much of the land that is part of the Metropolitan Statistical Area is rural or completely uninhabited. The core part of the Phoenix Metropolitan Area is the Phoenix–Mesa, Arizona Urban Area, Places that fall completely or partially within the boundaries of the Phoenix-Mesa, AZ UA are in bold below. 1,537,058 Places with 250, 000+ inhabitants Mesa pop,254,276 Places with 150, 000–249,999 inhabitants Gilbert pop. 166,934 Places with 75,000 to 149,999 inhabitants Surprise pop,75,664 Places with 30,000 to 74,999 inhabitants Buckeye pop. 32,236 Places with 10, 000–29,999 inhabitants Coolidge pop, the average elevation is about 2,000 feet, with the highest point being 2,704 feet. The Phoenix Metropolitan area is notable for its warm, desert climate, on average, the area receives about 9 inches of rain annually, with less than 1 inch of snow every decade. In total, the region will see about 32 days of precipitation each year. The MSA is one of the sunniest major metropolitan areas, receiving 295 days of sunshine, the average July high is about 104 °F, with the average January low being about 37 °F, still above freezing

20.
Denver metropolitan area
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Denver is the central city of a conurbation region in the U. S. state of Colorado. The conurbation includes one continuous region consisting of the six counties of Adams, Arapahoe, Broomfield, Denver, Douglas. The Denver region is part of the Front Range Urban Corridor, the continuously urbanized area extends northwest into the City and County of Broomfield, bordering Jefferson and Adams counties, and south into Douglas County, adjoining Arapahoe County. Also included in the federally defined MSA are four counties, Elbert County on the southeastern prairie and Clear Creek, Gilpin. The Denver-Aurora-Lakewood Metropolitan Statistical Area comprises ten counties, in 2005 the RTD developed a twelve-year comprehensive plan, called FasTracks, to build and operate rail transit lines and expand and improve bus service throughout the region. Electricity is provided by Xcel Energy, cable television is provided by Comcast. Severity of pollution in this area has varied enormously over the years, in the late 1980s the area was frequently in violation of multiple National Ambient Air Quality Standards established by the United States Environmental Protection Agency. The Regional Air Quality Council was formed in 1989 to create plans to address the problem, through a variety of measures the areas air quality was improved and in 2002 the EPA designated the area in compliance with all federal health-based air quality standards. Denver was the first major city in the United States to reach compliance with all six of these standards after previously violating five of them, since then the EPA introduced a new standard for small particulates and made the existing ozone standard stricter. In 2003 the new standard was frequently exceeded in the area and was occasionally exceeded as far away as Rocky Mountain National Park. The RAQC hopes to implement plans enabling the area to comply with the new standards by 2007. S

21.
Time in Canada
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Canada is divided into six time zones, based on proposals by Scottish Canadian railway engineer Sir Sandford Fleming, who helped pioneer the worlds time zone system. Most of Canada operates on standard time from the first Sunday in November to the second Sunday in March, in 1983, the zone was restructured to cover most of Alaska and renamed the Alaska Time Zone. In 1988, Newfoundland and Labrador used double daylight savings time from April 3 until October 30, most of Labrador, which uses Atlantic Standard Time used UTC-2 for this time period. All of Newfoundland and southern Labrador, which uses UTC-3,30 as its time zone. This only happened in 1988 and the now only adjusts its time by one hour for daylight savings time. Four Canadian cities, by ordinance, used Daylight Saving Time in 1916. Brandon, Manitoba on April 17 became the first place in the world to use it and it was followed by Winnipeg on April 23, Halifax on April 30, and Hamilton, Ontario on June 4. Daylight saving time is now observed in most regions of all provinces and territories, under the Constitution of Canada, laws related to timekeeping are a purely provincial matter. In practice, since the late 1960s DST across Canada has been closely or completely synchronized with its observance in the United States to promote consistent economic and social interaction. When the United States extended DST in 1987 to the first Sunday in April, columns marked with * are the columns from zone. tab itself

22.
Alberta
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Alberta is a western province of Canada. With an estimated population of 4,196,457 as of July 1,2015, it is Canadas fourth-most populous province and its area is about 660,000 square kilometres. Alberta and its neighbour Saskatchewan were districts of the Northwest Territories until they were established as provinces on September 1,1905, the premier has been Rachel Notley since May 2015. Alberta is bounded by the provinces of British Columbia to the west and Saskatchewan to the east, the Northwest Territories to the north, and the U. S. state of Montana to the south. Alberta is one of three Canadian provinces and territories to only a single U. S. state and one of only two landlocked provinces. About 290 km south of the capital is Calgary, the largest city in Alberta, Calgary and Edmonton centre Albertas two census metropolitan areas, both of which have populations exceeding one million, while the province has 16 census agglomerations. Tourist destinations in the province include Banff, Canmore, Drumheller, Jasper, Alberta is named after Princess Louise Caroline Alberta, the fourth daughter of Victoria, Queen of Canada, and Albert, Prince Consort. Princess Louise was the wife of John Campbell, Marquess of Lorne, Lake Louise and Mount Alberta were also named in her honour. Alberta, with an area of 661,848 km2, is the fourth largest province after Quebec, Ontario and British Columbia. To the south, the borders on the 49th parallel north, separating it from the US state of Montana. The province extends 1,223 km north to south and 660 km east to west at its maximum width, with the exception of the semi-arid steppe of the south-eastern section, the province has adequate water resources. There are numerous rivers and lakes used for swimming, fishing, there are three large lakes, Lake Claire in Wood Buffalo National Park, Lesser Slave Lake, and Lake Athabasca which lies in both Alberta and Saskatchewan. The longest river in the province is the Athabasca River which travels 1,538 km from the Columbia Icefield in the Rocky Mountains to Lake Athabasca, the largest river is the Peace River with an average flow of 2161 m3/s. The Peace River originates in the Rocky Mountains of northern British Columbia and flows through northern Alberta and into the Slave River, Albertas capital city, Edmonton, is located approximately in the geographic centre of the province. It is the most northerly city in Canada, and serves as a gateway. The region, with its proximity to Canadas largest oil fields, has most of western Canadas oil refinery capacity, Calgary is located approximately 280 km south of Edmonton and 240 km north of Montana, surrounded by extensive ranching country. Almost 75% of the population lives in the Calgary–Edmonton Corridor. The land grant policy to the served as a means to populate the province in its early years

23.
British Columbia
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British Columbia is the westernmost province of Canada, with a population of more than four million people located between the Pacific Ocean and the Rocky Mountains. British Columbia is also a component of the Pacific Northwest and the Cascadia bioregion, along with the U. S. states of Idaho, Oregon, Washington and Alaska. The first British settlement in the area was Fort Victoria, established in 1843, subsequently, on the mainland, the Colony of British Columbia was founded by Richard Clement Moody and the Royal Engineers, Columbia Detachment, in response to the Fraser Canyon Gold Rush. Port Moody is named after him, in 1866, Vancouver Island became part of the colony of British Columbia, and Victoria became the united colonys capital. In 1871, British Columbia became the province of Canada. Its Latin motto is Splendor sine occasu, the capital of British Columbia remains Victoria, the fifteenth-largest metropolitan region in Canada, named for the Queen who created the original European colonies. The largest city is Vancouver, the third-largest metropolitan area in Canada, the largest in Western Canada, in October 2013, British Columbia had an estimated population of 4,606,371. British Columbia evolved from British possessions that were established in what is now British Columbia by 1871, First Nations, the original inhabitants of the land, have a history of at least 10,000 years in the area. Today there are few treaties and the question of Aboriginal Title, notably, the Tsilhqotin Nation has established Aboriginal title to a portion of their territory, as a result of the recent Supreme Court of Canada decision. BCs economy is diverse, with service producing industries accounting for the largest portion of the provinces GDP and it is the endpoint of transcontinental railways, and the site of major Pacific ports that enable international trade. Though less than 5% of its vast 944,735 km2 land is arable and its climate encourages outdoor recreation and tourism, though its economic mainstay has long been resource extraction, principally logging, farming, and mining. Vancouver, the provinces largest city and metropolitan area, also serves as the headquarters of many western-based natural resource companies and it also benefits from a strong housing market and a per capita income well above the national average. The Northern Interior region has a climate with very cold winters. The climate of Vancouver is by far the mildest winter climate of the major Canadian cities, the provinces name was chosen by Queen Victoria, when the Colony of British Columbia, i. e. the Mainland, became a British colony in 1858. The current southern border of British Columbia was established by the 1846 Oregon Treaty, British Columbias land area is 944,735 square kilometres. British Columbias rugged coastline stretches for more than 27,000 kilometres and it is the only province in Canada that borders the Pacific Ocean. British Columbias capital is Victoria, located at the tip of Vancouver Island. Only a narrow strip of the Island, from Campbell River to Victoria, is significantly populated, much of the western part of Vancouver Island and the rest of the coast is covered by thick, tall and sometimes impenetrable temperate rainforest

24.
Northwest Territories
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The Northwest Territories is a territory of Canada. At a land area of approximately 1,144,000 km2 and its estimated population as of 2016 is 44,291. Yellowknife became the capital in 1967, following recommendations by the Carrothers Commission. The Northwest Territories are bordered by Canadas two other territories, Nunavut to the east and Yukon to the west, and by the provinces of British Columbia, Alberta, and Saskatchewan to the south. The name is descriptive, adopted by the British government during the era to indicate where it lay in relation to Ruperts Land. It is shortened from North-Western Territory, in Inuktitut, the Northwest Territories are referred to as ᓄᓇᑦᓯᐊᖅ, beautiful land. There was some discussion of changing the name of the Northwest Territories after the splitting off of Nunavut, one proposal was Denendeh, as advocated by the former premier Stephen Kakfwi, among others. One of the most popular proposals for a new name – one to name the territory Bob – began as a prank, in the end a poll conducted prior to division showed that strong support remained to keep the name Northwest Territories. This name arguably became more appropriate following division than it had been when the territories extended far into Canadas north-central and it possibly meets Manitoba at a quadripoint to the extreme southeast, though surveys have not been completed. It has an area of 1,183,085 km2. Territorial islands in the Canadian Arctic Archipelago include Banks Island, Borden Island, Prince Patrick Island and its highest point is Mount Nirvana near the border with Yukon at an elevation of 2,773 m. The Northwest Territories extends for more than 1,300,000 km2 and has a large climate variant from south to north, the southern part of the territory has a subarctic climate, while the islands and northern coast have a polar climate. Summers in the north are short and cool, with highs in the mid teens Celsius. Winters are long and harsh, daytime highs in the mid −20 °C, extremes are common with summer highs in the south reaching 36 °C and lows reaching into the negatives. In winter in the south, it is not uncommon for the temperatures to reach −40 °C, in the north, temperatures can reach highs of 30 °C, and lows can reach into the low negatives. In winter in the north it is not uncommon for the temperatures to reach −50 °C, thunderstorms are not rare in the south. In the north they are rare, but do occur. Tornadoes are extremely rare but have happened with the most notable one happening just outside Yellowknife that destroyed a communications tower, the Territory has a fairly dry climate due to the mountains in the west

25.
Tungsten, Northwest Territories
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The townsite of Tungsten is located at Cantung Mine in the Northwest Territories. It is accessible from Watson Lake, Yukon, Tungsten was built in 1961 and the tungsten mine went into operation in 1962 as a large open pit mine in the Mackenzie Mountains. It originally consisted of small bungalow houses. Total population of Tungsten during the 1960s was approximately 120 persons, in 1968 families were housed in 28 units. Because of extremely good wages and benefits, turnover rates for the operation were quite low. Families benefited from the K-8 Grade school, and later a K-9 system, during the summer months, because of the open pit operation, manpower and townsite population grew to 160. In the mid-1970s, the townsite expanded to include a trailer court, an 80-man bunkhouse was added in 1983. The town and mine were serviced by a road to Watson Lake. In 1979 the estimated population had reached 506,200 of whom were employees, by the fall of 1982, there were 450 residents and about 100 children were enrolled at Tungsten School. The community also had a telephone exchange operated by Northwestel, area code 403. By 1986, it was estimated that only 280 people were living at Tungsten, the Cantung Mine closed in May 1986, and the townsite was closed. A year or two later, the exchange, with only a handful of active lines on obsolescent electromechanical equipment, was shut down. Although the mine reopened in 2002, the nature of the mine had changed so there was no longer an operating townsite with families. The mine closed again in 2003, following an investment by the Kaska Dena Council in the Yukon in December 2004 the mine was reopened in 2005. The original bungalow houses remain to this day, along with the school, the community has the distinction of being the only place in the Northwest Territories that is on Pacific Time rather than Mountain Time. Cantung Mine Tungsten Airport North American Tungsten

26.
Nunavut
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Nunavut is the newest, largest, and northernmost territory of Canada. The creation of Nunavut resulted in the first major change to Canadas political map since the incorporation of the province of Newfoundland, Nunavut comprises a major portion of Northern Canada, and most of the Canadian Arctic Archipelago. Its vast territory makes it the fifth-largest country subdivision in the world, the capital Iqaluit, on Baffin Island in the east, was chosen by the 1995 capital plebiscite. Other major communities include the regional centres of Rankin Inlet and Cambridge Bay and it is Canadas only geo-political region that is not connected to the rest of North America by highway. Nunavut is the largest in area and the second least populous of Canadas provinces and territories. One of the worlds most remote, sparsely settled regions, it has a population of 35,944, mostly Inuit, spread over an area of just over 1,750,000 km2, Nunavut is also home to the worlds northernmost permanently inhabited place, Alert. A weather station farther down Ellesmere Island, Eureka, has the lowest average temperature of any Canadian weather station. Nunavut means our land in Inuktitut, Nunavut covers 1,877,787 km2 of land and 160,935 km2 of water in Northern Canada. This makes it the fifth largest subnational entity in the world, if Nunavut were a country, it would rank 15th in area. It also shares borders with Greenland and the provinces of Quebec, Ontario. Nunavuts highest point is Barbeau Peak on Ellesmere Island, the population density is 0.019 persons/km2, one of the lowest in the world. By comparison, Greenland has approximately the area and nearly twice the population. Nunavut experiences a climate in most regions, owing to its high latitude. In more southerly continental areas very cold climates can be found. The region now known as Nunavut has supported an indigenous population for approximately 4,000 years. Most historians identify the coast of Baffin Island with the Helluland described in Norse sagas, the materials were collected in five seasons of excavation at Cape Tanfield. Scholars determined that these provide evidence of European traders and possibly settlers on Baffin Island and they seem to indicate prolonged contact, possibly up to 1450. So you have to consider the possibility that as remote as it may seem, the ore turned out to be worthless, but Frobisher made the first recorded European contact with the Inuit

27.
Kitikmeot Region
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Kitikmeot Region is an administrative region of Nunavut, Canada. The regional seat is Cambridge Bay, before 1999, Kitikmeot Region existed under slightly different boundaries as Kitikmeot Region, Northwest Territories. Access to the capital of Iqaluit is difficult and expensive as there are no direct flights from any community in the region. For example, Iqaluit is approximately 1,069 km from Kugaaruk, in total a trip of about 3,627 km. Like the rest of Nunavut there is no access to the region. All five hamlets have certified airports, Cambridge Bay Airport, Gjoa Haven Airport, Kugaaruk Airport, Kugluktuk Airport and Taloyoak Airport, with scheduled flights by Canadian North, there are also five registered aerodromes in the region. Cambridge Bay Water Aerodrome is a floatplane base open in the summer only, Doris Lake Aerodrome, a 7,894 ft ice runway, the longest in the region which serves the Doris Lake mine. George Lake Aerodrome, an ice runway, like Doris Lake is only open from January to April, goose Lake Aerodrome also serves the Back River Gold Project and has both an ice and gravel runway. Hope Bay Aerodrome serves the Hope Bay mine site and is a gravel runway, none of the aerodromes have scheduled flights and are charter only. Bathurst Inlet and Umingmaktok have landing strips and no scheduled flights, seaplanes may land there in the summer. The region forms part of the Northwest Passage and has hosted several cruise ships, although the waterways are open in the summer there are no scheduled general passenger ships and only private yachts, such as the Octopus owned by Paul Allen, and cruise ships pass through. The region is home to the two communities in Nunavut that voted no in the 1982 division plebiscite, Cambridge Bay and Kugluktuk. The region has four districts, Cambridge Bay, which covers Bathurst Inlet, Cambridge Bay. The seat is held by Keith Peterson, Gjoa Haven, which covers the community of Gjoa Haven and is held by Tony Akoak. The seat is held by Peter Taptuna the Premier of Nunavut, netsilik, which covers Taloyoak and Kugaaruk. The seat is held by Emilino Qirngnuq, former districts include Akulliq, which covered Kugaaruk and Naujaat in the Kivalliq Region. It was the ony electoral district in Nunavut to cross two regions, nattilik, which covered Gjoa Haven and Taloyoak. The previous incumbent was the former federal Minister of Health, Leona Aglukkaq, however, the party was not formed and consequently no members ran for a seat in the Legislative Assembly of Nunavut which continues to run as a consensus government

28.
Saskatchewan
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Saskatchewan is a prairie and boreal province in west-central Canada, the only province without natural borders. It has an area of 651,900 square kilometres, nearly 10 percent of which is water, composed mostly of rivers, reservoirs. As of December 2013, Saskatchewans population was estimated at 1,114,170, residents primarily live in the southern prairie half of the province, while the northern boreal half is mostly forested and sparsely populated. Of the total population, roughly half live in the provinces largest city, Saskatoon, or the provincial capital, other notable cities include Prince Albert, Moose Jaw, Yorkton, Swift Current, North Battleford, and the border city Lloydminster. Saskatchewan is a province with large distances to moderating bodies of waters. As a result, its climate is continental, rendering severe winters throughout the province. Southern areas have very warm or hot summers, Midale and Yellow Grass near the U. S. border are tied for the highest ever recorded temperatures in Canada with 45 °C observed at both locations on July 5,1937. In winter, temperatures below −45 °C are possible even in the south during extreme cold snaps, Saskatchewan has been inhabited for thousands of years by various indigenous groups, and first explored by Europeans in 1690 and settled in 1774. It became a province in 1905, carved out from the vast North-West Territories, in the early 20th century the province became known as a stronghold for Canadian social democracy, North Americas first social-democratic government was elected in 1944. The provinces economy is based on agriculture, mining, and energy, Saskatchewans current premier is Brad Wall and its lieutenant-governor is Vaughn Solomon Schofield. In 1992, the federal and provincial governments signed a land claim agreement with First Nations in Saskatchewan. The First Nations received compensation and were permitted to buy land on the market for the tribes, they have acquired about 3,079 square kilometres. Some First Nations have used their settlement to invest in urban areas and its name derived from the Saskatchewan River. The river was known as kisiskāciwani-sīpiy in the Cree language, as Saskatchewans borders largely follow the geographic coordinates of longitude and latitude, the province is roughly a quadrilateral, or a shape with four sides. However the 49th parallel boundary and the 60th northern border appear curved on globes, additionally, the eastern boundary of the province is partially crooked rather than following a line of longitude, as correction lines were devised by surveyors prior to the homestead program. S. States of Montana and North Dakota, Saskatchewan has the distinction of being the only Canadian province for which no borders correspond to physical geographic features. Along with Alberta, Saskatchewan is one of only two land-locked provinces, the overwhelming majority of Saskatchewans population is located in the southern third of the province, south of the 53rd parallel. Saskatchewan contains two natural regions, the Canadian Shield in the north and the Interior Plains in the south

29.
Lloydminster
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Lloydminster is a Canadian city which has the unusual geographic distinction of straddling the provincial border between Alberta and Saskatchewan. Intended to be an exclusively British Utopian settlement centred on the idea of sobriety, the town was founded in 1903 by the Barr Colonists, who came directly from the United Kingdom. At a time when the area was part of the North-West Territories. The town was named for George Lloyd, an opponent of non-British immigration to Canada. The town developed rapidly, by 1904 there was an office as well as a log church, in 1905 the Lloydminster Daily Times started publication. While provincehood of some sort for the territories was seen as inevitable by 1903. Had they known, it is unlikely they would have sited the new settlement on the future border. When the provinces of Alberta and Saskatchewan were created in 1905, caught by surprise, Lloydminster residents petitioned for the new border to be revised so as to encompass the entire town within Saskatchewan, without success. For the next century, Lloydminster remained two separate towns with two separate municipal administrations. Finally, in 1930 the provincial governments agreed to amalgamate the towns into a town under shared jurisdiction. The provinces, again jointly, reincorporated Lloydminster as a city in 1958, commemorating Lloydminsters distinctive bi-provincial status, a monument consisting of four 100-foot survey markers was erected in 1994 near the citys downtown core. In 2000, the city hall and municipal offices were re-located from Saskatchewan to Alberta, since Lloydminsters founders were attempting to create a utopian, temperate society, alcohol was not available in Lloydminster for the first few years after its founding. The provincial border runs north to south, falling directly on 50th Avenue in the centre of Lloydminster, addresses east of 50th Avenue are considered to be in Lloydminster, Saskatchewan and addresses west of 50th Avenue are considered to be in Lloydminster, Alberta. The city is bordered by the County of Vermilion River, Alberta, on the west,502, Saskatchewan, on the northeast and the R. M. of Wilton No. Lloydminsters distinctive situation is reflected in other matters, including its time zone. Most of Saskatchewan does not observe daylight saving time, instead staying on Central Standard Time year-round, however, Alberta mandates daylight saving time. Lloydminsters charter allows the city to follow Albertas use of saving time on both sides of the provincial border in order to keep all clocks within the city in sync. This has the effect of placing Lloydminster and the area in the Mountain Time Zone along with Alberta

30.
Time in Mexico
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Mexico uses four main time zones since February 2015, Zona Sureste covers the state of Quintana Roo. Zona Centro covers the eastern three-fourths of Mexico, including Mexico City, Guadalajara, Zona Pacífico covers the states of Baja California Sur, Chihuahua, Nayarit, Sinaloa, and Sonora. Zona Noroeste covers the state of Baja California, including Tijuana, in addition, the law dictates that all island territories should fall within the time zone corresponding to their geographic location. Standard time was first defined in Mexico in 1921, when President Álvaro Obregón decreed two time zones, one time zone designated for 90° W covered the states of Tabasco, Chiapas, Campeche, Yucatán, and Quintana Roo. A second time zone designated for 105° W covered the rest of the country, from Baja California to Veracruz and Oaxaca. It was decreed in 1942 that the Hora del Noroeste should cover only the states of Baja California Sur, Sonora, Sinaloa, the time zone Hora del Sureste was created for tourist reasons in 1981, originally covering the states of Campeche, Yucatán, and Quintana Roo. The three states returned one year later to the Hora del Centro, Quintana Roo, however, returned to the Hora del Sureste from October 1997 to August 1998, first observation of DST was in 1931, but only for the state of Baja California. It used the Hora del Centro from April 1 to September 30, until 1996, Baja California was the only Mexican state to officially observe DST every year, coinciding with the observance of DST across the border in San Diego, California. These states abandoned DST the following year and did not return to it until DST was adopted nationwide, daylight saving time has been observed nationwide in Mexico beginning in 1996. But in the rest of the country, daylight saving time is observed between 2 a. m. on the first Sunday in April through 2 a. m. on the last Sunday in October, Quintana Roo and Sonora states do not observe DST. The first is the three or four weeks between the second Sunday in March and the first Sunday in April, the second is the single week between the last Sunday in October and the first Sunday in November. During these periods, clocks in Mexico City match those in Denver rather than those in Chicago, the Mexican Stock Exchange changes its hours during these periods in order to maintain synchronization with the U. S. markets. In 1998 the state of Chihuahua moved from Central time to Mountain time and this is likely because Ciudad Juárez is directly across the border from El Paso, Texas, which is on Mountain Time. Later, in 2001, Mexico experimented with a daylight saving period from the first Sunday in May till the last Sunday in September. When the United States extended their DST period in 2007, the congress refused to do the same for Mexico. For the second time, congress refused to adopt it nationwide, congress refused to approve the change for the third time in a 10-year period, discarding the bill on June 29,2016. Daylight saving time is observed in all parts of the country except for the states of Quintana Roo, and Sonora and this is to coincide with the non-observation in Arizona, with which Sonora shares its northern border. The island territories do not currently observe daylight time either, during non-DST period, Mexico uses 4 different time zones

31.
Mexican states
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The United Mexican States is a federal republic composed of 31 states and Mexico City. According to the Constitution of 1917, the states of the federation are free, each state has its own congress and constitution. Mexico City is currently being reformed to have the rights of a state. The states of the Mexican Federation are free, sovereign, autonomous and they are free to govern themselves according to their own laws, each state has a constitution that cannot contradict the federal constitution, which covers issues of national competence. Since states have autonomy, each has its own civil and penal codes. In addition, the federation makes up a constituency in which 32 senators are elected by the method of proportional representation, Federal Deputies, however, do not represent the states, but rather the citizens themselves. The Chamber of Deputies and the Senate together comprise the Congress of the Union, the states are internally divided into municipalities. Each municipality is autonomous in its ability to elect their own council, the council is headed by a mayor elected every 3 years with no possibility of immediate reelection. Each municipality has a composed of councilors in terms of population size. The council is responsible, in most cases, to all utilities required for its population. This concept, which arises from the Mexican Revolution, is known as a free municipality. In total there are 2438 municipalities in Mexico, the state with the highest number of municipalities is Oaxaca, with 570, Mexico City has a special status within the federation, being a federal district. Until January 2016, Mexico City was officially called Federal District and it is the seat of government of the Union and the capital of the United Mexican States. Mexico City was separated from the State of Mexico, of which it was the capital, on November 18,1824, as such, it did not belong to any state in particular but to all. Therefore, it was the president of Mexico, in representation of the federation, with full autonomy, Mexico City would have its own constitution – it previously had only an organic law called Statute of Autonomy – and its boroughs became municipalities. Until the ratification of Mexico Citys constitution, it is divided for administrative purposes into 16 delegacionesor boroughs. *Mexicos post agency, Correos de México, does not offer an official list, various competing commercially devised lists exist. The list here reflects choices among them according to these sources, on September 27,1821, after three centuries of Spanish rule, Mexico gained independence

32.
Baja California Sur
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Before becoming a state on October 8,1974, the area was known as the South Territory of Baja California. It is bordered to the north by the state of Baja California, to the west by the Pacific Ocean, the state has maritime borders with Sonora and Sinaloa to the east, across the Gulf of California. The state is home to the tourist resorts of Cabo San Lucas and its largest city and capital is La Paz. The state is the part of the Baja California Peninsula. With a territory of 73,909 km², it is about 750 km long, the state is divided into five municipalities. Comondú is located in the center of the state with its seat at Ciudad Constitución and it borders the municipalities of Mulegé, Loreto and La Paz with the Pacific Ocean to the west. Mulegé is in the north of the state with its capital in Santa Rosalía and it borders the municipalities of Comondú and Loreto with Baja California Norte to the north, the Pacific Ocean to the west and the Gulf of California to the east. It accounts for almost 45% of the state’s territory, the municipality of La Paz is in the south of the state. It is the second largest municipality, accounting for just over 27% of the territory of the state and it borders the municipalities of Comondú and Los Cabos and extends from the Pacific Ocean to the Gulf of California. The municipality of Los Cabos is at the tip of the state, with its seat at San José del Cabo. The municipality is one of the most important tourist destinations in Mexico, the municipality borders that of La Paz to the north, with the rest defined by the Pacific Ocean and the Gulf of California. The municipality of Loreto is in the center of the state and it borders the municipalities of Mulegé and Comondú with the Gulf of California to the east. Its major cities are La Paz, San Jose del Cabo, Ciudad Constitución, Santa Rosalia, the territory is primarily mountains or mountain ranges and coastal plains. The mountain ranges parallel the coastline and are of volcanic rock, the local name for the main mountain range is the Sierra de la Giganta and the highest peak is the Sierra de la Laguna at 2080m above sea level. The coastal plains are significantly wider on the Pacific side, averaging about 40 km, with much wider plains such as those of Santa Clara, Berrendo and these areas are dominated by sedimentary rock, especially limestone of marine origin. The state is divided into five regions, Central Desert, La Serranía, the Vizcaíno Desert, the Central Desert has desert plants, with vegetation springing up during short and irregular rains. The La Serranía is the mountain areas with significant tree cover. The Magdalena Plains is a large, flat area near the Pacific coast, the climate of the state is dry, with an average annual temperature of 18–22°C and average annual rainfall of less than 200mm

33.
Chihuahua (state)
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Chihuahua, officially the Free and Sovereign State of Chihuahua, is one of the 32 states of Mexico. Its capital city is Chihuahua City and it is located in Northwestern Mexico and is bordered by the states of Sonora to the west, Sinaloa to the southwest, Durango to the south, and Coahuila to the east. To the north and northeast, it has a border with the U. S. adjacent to the U. S. states of New Mexico. Chihuahua is the largest state in Mexico by area, with an area of 247,455 square kilometres, the state is consequently known under the nickname El Estado Grande. Although Chihuahua is primarily identified with the Chihuahuan Desert for namesake, it has more forests than any state in Mexico. Due to its variant climate, the state has a variety of fauna. The state is characterized by rugged mountainous terrain and wide river valleys. On the slope of the Sierra Madre Occidental mountains, there are vast prairies of short yellow grass, most of the inhabitants live along the Rio Grande Valley and the Conchos River Valley. The etymology of the name Chihuahua has long disputed by historians. The most accepted theory explains that the name was derived from the Nahuatl language meaning The place where the water of the rivers meet, Chihuahua has a diversified state economy. The three most important economic centers in the state are, Ciudad Juárez, a manufacturing center, Chihuahua, the state capital, and Delicias. Today Chihuahua serves as an important commercial route prospering from billions of dollars from international trade as a result of NAFTA, on the other hand the state suffers the fallout of illicit trade and activities especially at the border. The earliest evidence of inhabitants of modern day Chihuahua was discovered in the area of Samalayuca. Clovis points have been found in northeastern Chihuahua that have dated from 12,000 BC to 7000 BC. It is thought that these inhabitants were hunter gatherers, inhabitants of the state later developed farming with the domestication of corn. An archeological site in northern Chihuahua known as Cerro Juanaqueña revealed squash cultivation, irrigation techniques, between AD300 and 1300 in the northern part of the state along the wide, fertile valley on the San Miguel River the Casas Grandes culture developed into an advanced civilization. The Casas Grandes civilization is part of a prehistoric archaeological culture known as Mogollon which is related to the Ancestral Pueblo culture. Paquime was the center of the Casas Grandes civilization, extensive archaeological evidence shows commerce, agriculture, and hunting at Paquime and Cuarenta Casas

34.
Nayarit
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Nayarit, officially the Free and Sovereign State of Nayarit, is one of the 31 states which, with the Federal District, make up the 32 federal entities of Mexico. It is divided in 20 municipalities and its capital city is Tepic and it is located in Western Mexico. It is bordered by the states of Sinaloa to the northwest, Durango to the north, Zacatecas to the northeast, to the west, Nayarit has a significant share of coastline on the Pacific Ocean, including the islands of Marías and Marietas. The beaches of San Blas and the so-called Riviera Nayarit are popular with tourists, beside tourism, the economy of the state is based mainly on agriculture and fishing. Home to Uto-Aztecan indigenous peoples such as the Huichol and Cora, Spanish governance was made difficult by indigenous rebellions and by the inhospitable terrain of the Sierra del Nayar. The last independent Cora communities were subjugated in 1722, the states name recalls the Coras label for themselves, Náayerite, commemorating Nayar, a resistance leader. Encountered on the western coast by the Spanish invaders in 1500, hernándo was the first known European to enter into the area now known as Nayarit, which claimed for Spain as part of the colony of Nueva Galicia. As the Spaniards invaded the area, led by Nuño de Guzman, their brutality caused the inhabitants to revolt. After almost two centuries of resistance, the last independent Cora communities were incorporated into the administration by force in 1722. Then followed intense missionary efforts by Jesuit friars, in the colonial period, the port of San Blas was one of the most important trade ports on the American Pacific coast. Galleons transporting goods from Manila, the Philippines arrived here before the rise of the port of Acapulco, today, the town still boasts colonial architecture from the its heyday, such as the aduana, contaduria and the fortress that protected the port against pirates. In Nayarit, the struggle for independence from Spain was initiated by the priest José María Mercado, with the first independent constitution of 1824, Nayarit was a part of Jalisco state. During the second half of the 19th century, Nayarit was one of the most turbulent territories in Mexico, the population was in open revolt, demanding access to land. Nayarit was one of the last territories admitted as a state of the Mexican federation, Nayarit covers 27,815 square kilometers, making it one of the smaller states in Mexico. Nayarit is located between latitude lines 23°05 north and 20°36 south and longitude lines 103°43 east and 105°46 west and its terrain is broken up by the western ends of the Sierra Madre Occidental mountains. Its highest mountains are, San Juan, Sanguangüey, El Ceboruco, Nayarit has two volcanoes, Ceboruco and Sangangüey. In the northeast are broad, tropical plains watered by the Río Grande de Santiago, the main state rivers are the Río Grande de Santiago, San Pedro, Acaponeta, Ameca and Las Cañas. The Río Grande de Santiago is the largest river in Nayarit, the Santiago and its tributaries are of major importance for agricultural irrigation

35.
Sinaloa
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Sinaloa, officially the Free and Sovereign State of Sinaloa, is one of the 31 states which, with the Federal District, compose the 32 Federal Entities of Mexico. It is divided into 18 municipalities and its capital city is Culiacán Rosales and it is located in Northwestern Mexico. It is bordered by the states of Sonora to the north, Chihuahua and Durango to the east, to the west, Sinaloa has a significant share of coastline on the Gulf of California. The state covers an area of 57,377 square kilometers and it is known to be a stronghold territory for the Sinaloa Cartel. In addition to the city, the states important cities include Mazatlán. Prior to the coming of the Spaniards, much of Sinaloa was inhabited by the Cáhita peoples, in 1531, Nuño Beltrán de Guzmán with a force of over 10,000 men, defeated a force of 30,000 Cahíta warriors at the site of Culiacán. Beltrán de Guzmán established a Spanish and allied Indian outpost at San Miguel de Culiacán, over the next decade, the Cahíta suffered severe depopulation from smallpox and other diseases the Spanish brought. The Spanish organized Sinaloa as part of the gobierno of Nueva Galicia, the first capital of Nueva Vizcaya was located in San Sebastián, near Copala, but the capital moved to Durango in 1583. Starting in 1599, Jesuit missionaries spread out from a base at what is now Sinaloa de Leyva and by 1610, in 1601, the Jesuits movement into the eastern part of Sinaloa led to the Acaxee going to war. The Spanish eventually managed to reassert authority in the Sierra Madre Occidental region, after Mexican independence, Sinaloa was joined with Sonora as Estado de Occidente, but it became a separate, sovereign state in 1830. Sinaloa is traversed by rivers, which carve broad valleys into the foothills. The largest of these rivers are the Culiacán, Fuerte, Sinaloa has a warm climate on the coast, moderately warm climate in the valleys and foothills, moderately cold in the lower mountains, and cold in the higher elevations. Its weather characteristics vary from subtropical, found on coastal plains, temperatures range from 22 °C to 43 °C with rain and thunderstoms during the summer months and dry conditions throughout most of the year. Numerous species of plants and animals are found within Sinaloa, notable among the tree species is the elephant tree, Bursera microphylla. Culturally, it is known for its popular styles of music banda and it is the only place in the continent where the ancient Mesoamerican ballgame is played, in a handful of small, rural communities not far from Mazatlán. The ritual ballgame was central in the society, religion and cosmology of all the great Mesoamerican cultures including the Mixtecs, Aztecs, the Sinaloa version of the game is called ulama and is very similar to the original. There are efforts to preserve this 3500-year-old unique tradition by supporting the communities and its rich cuisine is well-known for its variety particularly in regard to mariscos and vegetables. Sushi is a popular dish here, the Sinaloa Cartel has significantly influenced the culture of Sinaloa

36.
Revillagigedo Islands
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The Revillagigedo Islands or Revillagigedo Archipelago are a group of four volcanic islands in the Pacific Ocean, known for their unique ecosystem. They lie approximately 390 kilometres southwest of Cabo San Lucas, the tip of the Baja California Peninsula. They are located around 18°49′N 112°46′W, the islands have been part of Manzanillo municipality of the Mexican state of Colima since 1861, but are nevertheless under Mexican federal jurisdiction. In July 2016, the Revillagigedo Archipelago were inscribed as a World Heritage Site, the total area is 157.81 km2, spread over an east-to-west extent of about 420 km. A naval station in the south of Socorro Island has a population of 45, on Clarión is a small naval garrison with 9 men. The islands are named after Don Juan Vicente de Güemes, 2nd Count of Revillagigedo, the three eastern islands are called the inner islands. They fall in the time zone UTC-7, while the part of Colima is UTC-6. Clarión is comparatively far to the west, by more than 200 km in comparison with the inner islands, the Revillagigedo Islands are one of three Mexican island groups in the Pacific Ocean that are not on the continental shelf, the others are Guadalupe Island and Rocas Alijos. No evidence of habitation on Socorro exists before its discovery by Spanish explorers. In November 1542, Ruy López de Villalobos, while exploring new routes across the Pacific, rediscovered Inocentes and Santo Tomás, Villalobos was the first to report sighting of Roca Partida Island giving it its present-day name. In 1608, Martín Yañez de Armida, in charge of expedition, visited Anublada. In 1779 José Camacho was the first to report sighting of the island remaining, Santa Rosa was later renamed Clarion after the vessel commanded by Henry Gyzelaar at that time. On 25 July 1861, President Benito Juárez signed a decree awarding territorial control over the four islands to the state of Colima. His plan was to build an offshore penitentiary on Isla Socorro, although this never happened, at the beginning of the twentieth century, Dr. Barton Warren Evermann, director of the California Academy of Sciences in San Francisco, California, promoted the scientific exploration of the islands. The most comprehensive biological collections were obtained at this time, the volcano on Isla Socorro was renamed in his honor. In 1957 the Mexican Navy established a base on Socorro and has had a permanent presence on the island since then. A tiny outpost also exists on Clarión, as noted above, on 21 March 1972, Pablo Silva García became the first governor of Colima to visit his states island territories. A plaque was unveiled to mark the event and cement Colimas claim, the seas surrounding the larger islands are popular with scuba divers, a variety of marine life such as cetaceans, sharks and manta rays can be observed

37.
Colima
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Colima, officially the Free and Sovereign State of Colima, is one of the 32 states that make up the 32 Federal Entities of Mexico. It shares its name with its capital and main city, Colima, Colima is a small state of Western Mexico on the central Pacific coast, with the four oceanic Revillagigedo Islands. Mainland Colima shares borders with the states of Jalisco and Michoacán, in addition to the capital city of Colima, the main cities are Manzanillo and Tecomán. Colima is the fourth smallest state in Mexico and has the smallest population, the state is in the middle of Mexico’s Pacific coast, bordered by the Pacific Ocean and the states of Jalisco and Michoacán. Colima’s territory includes the Revillagigedo Islands—Socorro, San Benedicto, Clarión and these are under federal jurisdiction but are considered part of the municipality of Manzanillo. Politically, the state is divided into ten municipalities, natural geography divides the state into a northern and southern region. The north has a cooler climate due to the higher mountains, the south is hotter and includes the Pacific Ocean coastline. The Revillagigedo Islands, of origin, are dispersed along the 19° north parallel over an area of about 400 km2—with a total landmass of 205 km2. The altitude varies from sea level to 3,839 m at the crater of the Volcán de Colima, the state is in an offshoot of the Sierra Madre Occidental mountain range and geographically consists of four mountain systems. The most important of these is the Cerro Grande and its related peaks of Jurípicho-Juluapan, Los Juanillos, La Astilla, El Ocote, El Peón, El Barrigón, San Diego, and La Media Luna. The third is located between the Armería and Salado Rivers and includes the Alcomún y Partida, San Miguel y Comala and San Gabriel/Callejones peaks. The last is between the Salado and Naranjo or Coahuayana Rivers and contains mountain chains such as the Piscila, Volcancillos, La Palmera, El Camichín. Three quarters of the state is covered by mountains and hills, at the very north of the state, the border is marked by two volcanoes. The Colima Volcano, also called the Volcán de Fuego, is active, the Nevado de Colima is taller at 4,271 m and gives its name to the national park that surrounds it. The Colima Volcano,3825 m, has a peak, in contrast to the other. The last major eruptions of the Colima Volcano occurred in 1998 and 1999, the Salado is another important river, which flows entirely within Colima before emptying into the Coahuayana. Many of the streams and arroyos empty into the Salado. Colima has a short coastline, at 139 km

38.
Isla Socorro
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Socorro Island is a small volcanic island in the Revillagigedo Islands, a Mexican possession lying some 600 kilometers off the countrys western coast at 18°48N, 110°59W. The size is 16.5 by 11.5 km and it is the largest of the four islands of the Revillagigedo Archipelago. The island rises abruptly from the sea to 1,050 meters in elevation at its summit, Isla Socorro is a shield volcano. The island is part of the northern Mathematicians Ridge, a ridge that became largely inactive 3.5 million years ago when activity moved to the East Pacific Rise. All four islands along with the many seamounts on the ridge are post-abandonment alkaline volcanoes, Socorro Island is unusual in that it is the only dominantly silicic peralkaline volcanic island in the Pacific Ocean. It most recently erupted in late January-early February,1993, which was a flank eruption off the coast from Punta Tosca. An earlier eruption was on May 21,1951, earlier eruptions probably occurred in 1905,1896 and 1848, the initial volcanic event probably occurred in 3090 BC +/-500 years. Mount Evermann is the given to the summit dome complex. The islands surface is broken by furrows, small craters, and numerous ravines, there is a naval station 18. 728°N110. 952°W﻿ /18.728, -110. The station is served by a dock, a helipad and airport Isla Socorro, located six kilometers to the north, at 18. 773°N110. 931°W﻿ /18.773. There is a water spring about 5 km northwest of Cabo Regla, at the shoreline of Ensenada Grayson. This is brackish or even covered by the sea at high tide, no evidence of human habitation on Socorro exists before its discovery by Spanish explorers. Hernando de Grijalva and his crew discovered an island on 19 December 1533. At the beginning of the century, Barton Warren Evermann. The most comprehensive biological collections were obtained at this time, the volcano on Socorro was renamed in his honor. Archie Smith, an American laborer from San Diego, was abandoned on the island for one month in 1929 before being rescued by a fishing boat. In September 1997, the island was struck by Hurricane Linda, the lowlands of Socorro – except on the northern, more humid side – are covered with thick shrubland, consisting mainly of endemic Croton masonii and a cactus, probably Engelmanns prickly pear. Above 650 metres and on the side, a richer vegetation occurs

39.
San Benedicto Island
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San Benedicto, formerly Isla de los Innocentes, is an uninhabited island, and third largest island of the Revillagigedo Islands, located in the Pacific ocean. It is 4.8 km by 2.4 km in size, the tallest peak, Bárcena, rises to a height of 332 metres near the southern part of the island. It forms a volcanic crater. It is located between the remains of two craters, Herrera in the middle of the island and the Montículo Cinerítico in the southwest. There is no permanent source of freshwater, in November 1542, it was sighted again by the expedition of Ruy López de Villalobos that incorrectly identified it with the Santo Tomás of Grijalva. Barcenas only historic eruption began around 8,30 AM on August 1,1952, in a severe Vulcanian eruption of magnitude 3 on the Volcanic Explosivity Index scale, pyroclastic flows rolled over the island. Soon the entire island was covered in ash and pumice up to 3 m high, ejecta filled the valley between Herrera crater and Montículo Cinerítico, and by August 14 had formed a cone some 300 m high. After some months with little activity, a series of eruptions began on November 1,1952. On December 8, the magma broke through the southeastern base. This continued to about February 24,1953, by March 9,1953, most activity had subsided, except fumaroles in the crater and at the rift in its base, the lava was hard but still retained much heat. By late 1953, the volcano was dormant again, the eruption wiped out – at least temporarily – all flora and terrestrial fauna of San Benedicto, much like it had happened on Krakatoa in 1883. The fauna included the endemic San Benedicto rock wren which became extinct around 9 AM on August 1. It is unusual for an extinction to be recorded with such precision, however, once the volcanic activity had died down by the spring of 1953, seabirds returned to the island for the breeding season. They roosted only north of Herrera crater, where the ash cover had begun to erode away. A few Johngarthia planatus land crabs were present also, having managed to survive the eruption or, more probably, recolonized the island. Still, the island was devoid of plant life, by late 1953, rain had removed the ash and pumice deposits in the steeper places of northern San Benedicto. At least half the recorded plant taxa were again present. Numerous seabirds were found breeding, most north of Herrera but a colony of blue-footed boobies was present in the ditch between Herrera and Barcena, the vertebrate fauna of San Benedicto is nowadays composed entirely of seabirds

40.
Roca Partida
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Roca Partida ranks as the smallest of the four Revillagigedo Islands, part of the Free and Sovereign State of Colima in Mexico. This uninhabited island encompasses an area of only 1.4 hectares, divers must obtain permits from the Mexican Armed Forces to enter into this military zone. The four Revillagigedo Islands originated as volcanoes, san Benedicto Island and Socorro Island erupted in 1953 and 1993, respectively. Clarion Island and Roca Partida lack recent known eruptions, erosion over millennia reduced Roca Partida to a piece of bare rock, devoid of terrestrial vegetation. Roca Partida,100 metres long and 8 metres wide, rises into two peaks, a low-lying bare rock area divides these two peaks, hence the name Split Rock. The two peaks measured 25 metres and 34 metres high in 1953, but the higher peak apparently lost several meters since then, Roca Partida lacks fresh water and supports no land animals. Nevertheless, the waters surrounding this islet teem with marine life, marine Life of Roca Partida Scuba Diving in Roca Partida Information page with map

41.
Time in the United States
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The time zone boundaries and DST observance are regulated by the Department of Transportation. The clocks run by these services are synchronized with each other as well as with those of other international timekeeping organizations. It is the combination of the zone and daylight saving rules, along with the timekeeping services. The use of solar time became increasingly awkward as railways. American railroads maintained many different time zones during the late 1800s, each train station set its own clock making it difficult to coordinate train schedules and confusing passengers. Time calculation became a problem for people travelling by train. Every city in the United States used a different time standard so there were more than 300 local sun times to choose from, Time zones were therefore a compromise, relaxing the complex geographic dependence while still allowing local time to be approximate with mean solar time. Railroad managers tried to address the problem by establishing 100 railroad time zones, operators of the new railroad lines needed a new time plan that would offer a uniform train schedule for departures and arrivals. Four standard time zones for the continental United States were introduced at noon on November 18,1883, the conference therefore established the Greenwich Meridian as the prime meridian and Greenwich Mean Time as the worlds time standard. The US time-zone system grew from this, in all zones referred back to GMT on the prime meridian. It is, within about 1 second, mean time at 0°. It does not observe daylight saving time and it is one of several closely related successors to Greenwich Mean Time. For most purposes, UTC is considered interchangeable with GMT, standard time zones in the United States are currently defined at the federal level by law 15 USC §260. The federal law establishes the transition dates and times at which daylight saving time occurs. As of August 9,2007, the time zones are defined in terms of hourly offsets from UTC. Prior to this they were based upon the solar time at several meridians 15° apart west of Greenwich. Only the full-time zone names listed below are official, abbreviations are by common use conventions, the United States uses nine standard time zones. The Central standard time zone, which comprises roughly the Gulf Coast, Mississippi Valley, the Mountain standard time zone, which comprises roughly the states that include the Rocky Mountains

42.
Colorado
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Colorado is a state in the United States encompassing most of the Southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is part of the Western United States, the Southwestern United States, Colorado is the 8th most extensive and the 21st most populous of the 50 United States. The United States Census Bureau estimates that the population of Colorado was 5,540,545 on July 1,2016, the state was named for the Colorado River, which Spanish travelers named the Río Colorado for the ruddy silt the river carried from the mountains. The Territory of Colorado was organized on February 28,1861, Colorado is nicknamed the Centennial State because it became a state in the same year as the centennial of the United States Declaration of Independence. Colorado is noted for its landscape of mountains, forests, high plains, mesas, canyons, plateaus, rivers. Denver is the capital and the most populous city of Colorado, residents of the state are properly known as Coloradans, although the term Coloradoan has been used archaically and lives on in the title of Fort Collins newspaper, the Coloradoan. Colorado, Wyoming and Utah are the states which have boundaries defined solely by lines of latitude and longitude. The summit of Mount Elbert at 14,440 feet elevation in Lake County is the highest point in Colorado, Colorado is the only U. S. state that lies entirely above 1,000 meters elevation. The point where the Arikaree River flows out of Yuma County, Colorado and this point, which holds the distinction of being the highest low elevation point of any state, is higher than the high elevation points of 18 states and the District of Columbia. A little less than one half of the area of Colorado is flat, East of the Rocky Mountains are the Colorado Eastern Plains of the High Plains, the section of the Great Plains within Nebraska at elevations ranging from roughly 3,350 to 7,500 feet. The Colorado plains were mostly prairies, but they have many patches of forests, buttes. Eastern Colorado is presently covered in farmland and rangeland, along with small farming villages. Precipitation is fair, averaging from 15 to 25 inches annually, corn, wheat, hay, soybeans, and oats are all typical crops, and most of the villages and towns in this region boast both a water tower and a grain elevator. Irrigation water is available from the South Platte, the Arkansas River, and a few other streams, however, heavy use of ground water from wells for irrigation has caused underground water reserves to decline. As well as agriculture, eastern Colorado hosts considerable livestock, such as cattle ranches. Roughly 70% of Colorados population resides along the edge of the Rocky Mountains in the Front Range Urban Corridor between Cheyenne, Wyoming, and Pueblo, Colorado. This region is protected from prevailing storms that blow in from the Pacific Ocean region by the high Rockies in the middle of Colorado. The Front Range includes Denver, Boulder, Fort Collins, Loveland, Colorado Springs, Pueblo, Greeley and other townships, on the other side of the Rockies, the significant population centers in Western Colorado are the cities of Grand Junction, Durango, and Montrose

43.
Montana
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Montana /mɒnˈtænə/ is a state in the Western region of the United States. The states name is derived from the Spanish word montaña, Montana has several nicknames, although none official, including Big Sky Country and The Treasure State, and slogans that include Land of the Shining Mountains and more recently The Last Best Place. Montana has a 545-mile border with three Canadian provinces, British Columbia, Alberta, and Saskatchewan, the state to do so. It also borders North Dakota and South Dakota to the east, Wyoming to the south, Montana is ranked 4th in size, but 44th in population and 48th in population density of the 50 United States. The western third of Montana contains numerous mountain ranges, smaller island ranges are found throughout the state. In total,77 named ranges are part of the Rocky Mountains, the eastern half of Montana is characterized by western prairie terrain and badlands. The economy is based on agriculture, including ranching and cereal grain farming. Other significant economic activities include oil, gas, coal and hard rock mining, lumber, the health care, service, and government sectors also are significant to the states economy. Millions of tourists annually visit Glacier National Park, the Little Bighorn Battlefield National Monument, the name Montana comes from the Spanish word Montaña and the Latin word Montana, meaning mountain, or more broadly, mountainous country. Montaña del Norte was the name given by early Spanish explorers to the mountainous region of the west. The name was changed by Representatives Henry Wilson and Benjamin F. Harding, when Ashley presented a bill to establish a temporary government in 1864 for a new territory to be carved out of Idaho, he again chose Montana Territory. This time Rep. Samuel Cox, also of Ohio, objected to the name, Cox complained that the name was a misnomer given most of the territory was not mountainous and that a Native American name would be more appropriate than a Spanish one. Other names such as Shoshone were suggested, but it was decided that the Committee on Territories could name it whatever they wanted, with an area of 147,040 square miles, Montana is slightly larger than Japan. It is the fourth largest state in the United States after Alaska, Texas, and California, the largest landlocked U. S. state, and the worlds 56th largest national state/province subdivision. To the north, Montana shares a 545-mile border with three Canadian provinces, British Columbia, Alberta, and Saskatchewan, the state to do so. It borders North Dakota and South Dakota to the east, Wyoming to the south, the states topography is roughly defined by the Continental Divide, which splits much of the state into distinct eastern and western regions. Most of Montanas 100 or more named mountain ranges are in the western half. The Absaroka and Beartooth ranges in the states south-central part are part of the Central Rocky Mountains

44.
Utah
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Utah is a state in the western United States. It became the 45th state admitted to the U. S. on January 4,1896, Utah is the 13th-largest by area, 31st-most-populous, and 10th-least-densely populated of the 50 United States. Utah has a population of more than 3 million, approximately 80% of whom live along the Wasatch Front, Utah is bordered by Colorado to the east, Wyoming to the northeast, Idaho to the north, Arizona to the south, and Nevada to the west. It also touches a corner of New Mexico in the southeast, approximately 62% of Utahns are reported to be members of The Church of Jesus Christ of Latter-day Saints or LDS, which greatly influences Utahn culture and daily life. The LDS Churchs world headquarters is located in Salt Lake City, Utah is the only state with a majority population belonging to a single church. The state is a center of transportation, education, information technology and research, government services, mining, in 2013, the U. S. Census Bureau estimated that Utah had the second fastest-growing population of any state. St. George was the metropolitan area in the United States from 2000 to 2005. Utah also has the 14th highest median income and the least income inequality of any U. S. state. A2012 Gallup national survey found Utah overall to be the best state to live in based on 13 forward-looking measurements including various economic, lifestyle, the name Utah is derived from the name of the Ute tribe. It means people of the mountains in the Ute language, according to other sources Utah is derived from the Apache name Yudah which means Tall. These Native American tribes are subgroups of the Ute-Aztec Native American ethnicity and were sedentary, the Ancestral Pueblo people built their homes through excavations in mountains, and the Fremont people built houses of straw before disappearing from the region around the 15th century. Another group of Native Americans, the Navajo, settled in the region around the 18th century, in the mid-18th century, other Uto-Aztecan tribes, including the Goshute, the Paiute, the Shoshone, and the Ute people, also settled in the region. These five groups were present when the first European explorers arrived, the southern Utah region was explored by the Spanish in 1540, led by Francisco Vásquez de Coronado, while looking for the legendary Cíbola. A group led by two Catholic priests—sometimes called the Dominguez-Escalante Expedition—left Santa Fe in 1776, hoping to find a route to the coast of California, the expedition traveled as far north as Utah Lake and encountered the native residents. The Spanish made further explorations in the region, but were not interested in colonizing the area because of its desert nature, in 1821, the year Mexico achieved its independence from Spain, the region became known as part of its territory of Alta California. European trappers and fur traders explored some areas of Utah in the early 19th century from Canada, the city of Provo, Utah was named for one, Étienne Provost, who visited the area in 1825. The city of Ogden, Utah was named after Peter Skene Ogden, in late 1824, Jim Bridger became the first known English-speaking person to sight the Great Salt Lake. Due to the salinity of its waters, Bridger thought he had found the Pacific Ocean

The Phillip Darrell Duppa adobe house was built in 1870 and is the oldest known house in Phoenix. The homestead is named after "Lord" Darrell Duppa, an Englishman who is credited with naming Phoenix and Tempe as well as founding the town of New River.

The Code of Federal Regulations (CFR) is the codification of the general and permanent rules and regulations (sometimes …

A few volumes of the CFR at a law library (titles 12–26).

Code of Federal Regulations, seen at the Mid-Manhattan Library. Editions of Title 3, on the President, are kept on archive. Notice that for the first year of each new presidency, the volume is thicker.